Add `--checkout` flag to `kedro new` for blank project with/without tools

[ankatiyar]

Description

Follow up for kedro-org/kedro-starters#302
We want to add an option for selecting checkout branch similar to how it works with --starters but also for kedro new where the blank template is used

Context

Context in kedro-org/kedro-starters#302

Possible Implementation

• Based on quick prototyping it seemed like just removing the error here would work but to be double checked by whoever is implementing it:

  kedro/kedro/framework/cli/starters.py

  Line 143 in 37ec20e

  raise KedroCliError("Cannot use the --checkout flag without a --starter value.")

• Add tests